Quick answer: Mounjaro supply in the UK has had periods of constraint since launch, concentrated in specific doses at specific times. The live picture changes week to week — our index shows stock status per pharmacy where providers publish it, and any current disruption is usually visible as gaps in the comparison table.
Why shortages happen
- Demand outrunning manufacturing. GLP-1 medicines have seen extraordinary global demand; manufacturers scale production on multi-year timelines.
- Dose-specific pinches. Shortages are rarely all-doses-at-once — a single dose (often a starter dose, where new patients cluster) can be tight while others are fine.
- Wholesale allocation. Pharmacies receive allocations, so one provider can be out while another has stock.
What to do if your dose is short
- Check across pharmacies.
Stock differs provider to provider — the comparison table is the fastest way to see who has your dose.
- Talk to your prescriber early.
If a gap is likely, they can advise — which may include timing adjustments. Don’t improvise dose changes yourself.
- Never buy from unregistered sellers.
Shortages are exactly when fake pens flood in. The fake pen guide and the GPhC check exist for this moment.
Staying informed
We don’t publish rumours. When a provider’s public listing shows a dose unavailable, it shows in the index. Manufacturer statements and MHRA alerts are the authoritative sources for the wider picture.
Sources: Mango Market live index; Eli Lilly UK statements; MHRA alerts. Supply status is volatile — the live comparison is the current truth.
Mango Market is an independent comparison service, not a pharmacy. Nothing here is medical advice — treatment decisions belong to you and a qualified prescriber. Editorial standards · Methodology.